Multislider in javascript

Hello
I’m new to Javascript in max/msp, so this is probably a pretty straight forward question. How do i make a multislider?
I found this code for creating a uslider in one of the examples: thesliders[k] = this.patcher.newdefault(300+(k*50), 100, "uslider"); – so I’m guessing that I just have to change property to "multislider", but that doesn’t work.
I would also love to be pointed to a more complete max/msp javascript reference than the one in the max documentation.